Improved tile-machine



@that tapes @anni @mula Letters Patent No. 93,830, dated August 17, 1869.'

The Schedule referred toin these Letters Patent and making part of the same;

To all who'mY it nay concern.'

Beit known that we, SloLoMoN Ninn andDANrnL NILL, of Covington, in the county of Darke, and State of Ohio, have invented certain new and useful Improvements in '.llile-lldills;v and we do hereby declare that the following is a full, clear, and exact? descrip- `tion thereof, reference being had to the accompanying drawings, andv to Ythe letters of reference marked thereon, which form a partof this specification, in which`-.

Figure l represents a vertical longitudinal section of our machine.

Figure 2 isan end view of the same.

The nature of our invention consists in the employinent of arake, for cleaning the screens from gravel, said rake being operated substantially 'in the manner and for the purpose described; also in the employment of cams on themain shaft, for operat-ing such' devices, and in the manner hereinafter set forth.

In the annexed drawings- A represents the frame of our machine.

B designates a vertical beam, pivoled to the studsfar upward to penetrate the bar H, by which the ma` chine is operated.

Directly above block g-.is' placed the cam e, which,

in its reciprocating motion, works alternately against -the two pulleys 'i and j.

N represents a slide, with a slot in it, through which the shaft c passes.

The inner end of' slide is pivoted to pitman m., the other end of said pitman being pivot-ed to rocking shaft B.

The slide Nis made to work 4in* groves, cut in the two bars s s, which are fastened to the upper surface of plates Ef On shaft a, and within chamber D, are secured several toothed bars`d, the design of which is to mix thoroughly the mortar before it is forced into. the die R.

In addition to the toothed bars above described, a scraper, f,fis attached to the shaft a, directly above the floor M.

The said scraper is edged at its lower side, for the purpose-of removing the mortar from the surface of floor M, andforcing it through the opening t, into the cavity L.

The moment the mortar reaches the cavity L, it i's exposed to' the action of follower P, the said follower .being subjected to a reciprocating motion from cam k.

Friction-rollers x x are-pivoted in follower P, to facilitate the motion of the cam k. Y

.The'follower P, in acting on thc .mortar in cavi7 L, will force it through 'screen h, into vopening V, and thence into cavity T, where it will be subjected to the action of plunger W, which is attached to the end of y,

pitman y. l

The plunger W will force the clay through the die It, and thus complete the process of making tiles.

Should there be gravel in thc mortar, it will be driven, by the action of follower P, into the slot u, at the bottom of cavity L, and can be driven thence by an iron rod, which can be inserted at one end of saidslot, and the gravel forced out at the opposite end. l

g represents a rake, secured at the lower end of vertical shaft c. The. object of therake is to keepA the screen from becoming clogged.

` k2 is a block, secured to the front end of chamber D. Said block is provided with a groove, in which the rake-shaft slides, it being retained in place by means ofthe hinged loops fm. f

The object in hinging these loopssto'enable-the rake to be removed when desired.

O is a cross-bar, securednear thetop of rake-shaft '1., and

a, a pulley. The object of these devices will' be fullyr seen presently. H represents the bar or sweep, secured tothe shafta'.l By the means of said sweep the machineis oper- `ated, for by every complete circuit of said sweep each of the pitmen will have one forwaad and. one back` ward motion, and the rake, one downward and one upward motion, produced by means of the projection ou the 'under side ofthe sweep pressing on the pulley z, upon shaft fr, and forcing said shaft downward.

The shaft, when down, will be raised by means of the two springs b l1.

The springs b b will be secured to the end of each of the bars d, which are bolted to the plates E.

In order to'admit of the die It being changed, it is Yconfined in-its place by the hingedframe F, the interior of which is bevelled, so that when the die is inserted in its place, it will be flush with the external surface of the said frame F.

i Having thus described our invention,

What-we claim, and desire'to secure by Letters Patent, is

1. The rake q, operated by shaft r, and provided with cross-bar o, inv combination with springsb b, all

arranged for the purpose of cleaning the meshes of the Ascreen h, substantially as described.

2. The arrangement described of cams e k, on shaft a, for operating follower P and plunger W, substantially in the manner herein'set forth.

In testimony that'we claim the foregoing as our own,

Witnesses D. J MARTIN, Josera MARMN. 

